Average annual temperature is 16.2 °C
Absolute maximum temperature: 36.9 °C
Absolute minimum temperature: -10.1 °C
Number of sunny days: 177 days
Number of rainy days: 186 days
Number of snow days: 2 days
Look at detailed online map of Setochō-seto
* Weather data for Setochō-seto Japan is based on climate observations for 2026 year
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Absolute maximum temperature (°C) | 18.4 | 15.7 | 24.0 | 27.1 | 29.2 | 31.3 | 34.8 | 36.9 | 34.2 | 28.8 | 26.6 | 20.3 |
| Average daytime temperature (°C) | 9.9 | 10.5 | 17.2 | 19.6 | 23.3 | 26.4 | 31.0 | 32.1 | 30.7 | 23.7 | 17.8 | 12.4 |
| Average temperature (°C) | 4.1 | 5.0 | 11.1 | 14.1 | 18.4 | 22.2 | 26.9 | 28.4 | 26.2 | 17.7 | 12.4 | 7.0 |
| Average night temperature (°C) | -0.7 | 0.3 | 5.7 | 9.0 | 14.1 | 18.4 | 23.3 | 25.4 | 22.5 | 12.5 | 8.1 | 2.8 |
| Absolute minimum temperature (°C) | -10.1 | -4.4 | -2.6 | 3.0 | 8.0 | 12.4 | 20.6 | 23.6 | 16.4 | 7.7 | 0.5 | -3.6 |
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Daylight maximum duration (h) | 10.0 | 11.0 | 12.0 | 13.0 | 14.0 | 14.0 | 14.0 | 13.0 | 12.0 | 11.0 | 10.0 | 10.0 |
| Daylight mean duration (h) | 10.1 | 10.9 | 12.0 | 13.1 | 14.0 | 14.4 | 14.2 | 13.4 | 12.4 | 11.3 | 10.4 | 9.9 |
| Daylight minimum duration (h) | 9.0 | 10.0 | 11.0 | 12.0 | 13.0 | 14.0 | 13.0 | 12.0 | 11.0 | 10.0 | 10.0 | 9.0 |
| Sunshine mean duration (h) | 6.9 | 6.7 | 8.2 | 7.8 | 8.8 | 7.1 | 9.6 | 10.2 | 9.3 | 8.8 | 7.7 | 6.9 |
| Precipitation (mm) | 25 | 42 | 78 | 231 | 217 | 254 | 125 | 236 | 53 | 24 | 63 | 33 |
| Sunny days | 19 | 14 | 18 | 15 | 15 | 10 | 11 | 3 | 10 | 23 | 18 | 21 |
| Rainy days | 10 | 14 | 13 | 15 | 16 | 20 | 20 | 28 | 20 | 8 | 12 | 10 |
| Snow days | 2 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
The largest precipitation sum in Setochō-seto is at